Abstract:Objective: This study aimed to enhance the diagnostic efficiency of typical paroxysmal hemicrania (PH) by investigating its clinical characteristics in adult, pediatric cases. Methods: We conducted computerized retrieval to obtain a comprehensive collection of representative case studies on pulmonary hypertension (PH) published from 1988 to the present, encompassing databases such as PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure (CNKI), and Wanfang Database. Extract relevant information including age of onset, gender, location of headache, duration, frequency of attacks, associated autonomic symptoms, and dosage of acetazolamide. Results: A total of 42 studies involving 114 patients were included in the analysis. Among them, there were 94 adult patients, with an average age of onset of 38.82 ± 13.36 years. The male-to-female ratio was 1:1.35. The effective dose of indomethacin was 100mg·kg-1·d-1. 17% of patients had secondary factors, and their age of onset was greater than that of primary cases (46.13±19.46 vs 37.32±11.33, P<0.05). Twenty pediatric patients had an average age of onset of 7.36 ± 4.00 years, with males accounting for 60%. The average initial dose of indomethacin was 2.93 mg/kg. Conclusion: Secondary PH have a later age of onset. It is recommended to perform neuroimaging examinations and long-term follow-up for all PH patients.